Supercap and White LED and Energy Harvesters

This is a educative and simple example to help learn about supercaps and white LED. It will also help you understand component behavior. If you are learning electronics, try this one out.

The goldcap-Dynamo Lamp idea is a DIY Tutorial by Kainka on Electrical Energy Harvesting. What may be this EH Thing ?

Supercap and White LED and Energy Harvesters

Energy harvesting (also known as power harvesting or energy scavenging) is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients, and kinetic energy), captured, and stored for small, wireless autonomous devices, like those used in wearable electronics and wireless sensor networks. – EH at Wikipedia

Then the Cycle Dynamo may not be the ideal choice for furthering this research. The reason being, this is quite a powerful source of energy, especially when going downhill!

Electric Double Layer Capacitor – EDLC

We need a more fussy source of Electricity. Like the waves of the sea, that could splash onto Large plates of Springy Beryllium Copper Cantilevers, which moves an Array of Magnets in coils (Reverse of Solenoids). This gives Random Spurts of High Energy Pulses which have to be Harvested.

Piezoelectric Energy Harvester – Mide Technology

That is for you to dare and do …….. Now let me give some things you can read, before you start this epic Adventure…

Electric double layer capacitor an eFlywheel

Now Move ! There is so much Abundant Energy to be Harvested. You can Even Setup a Roadside Electric Trike Recharging Station. – Gomier Electric Tricycle

We need more contests, An LED Lighting Contest and a Sponsored Elekrik Vehicle (Non-Car) Super-Contest.

Tone generation using 89C2051 – AirBorn

This is a nice educational reference project based on 89C2051, an 8051 derivative. This uses the Uses analog switches to steer test tones and results. Programmed in assembler to produce pure 1khz tone.

Tone generation using 89C2051 – AirBorn

Tone generation using 89C2051 - AirBorn

Using a multimeter

“The example meter that we are demonstrating is typical of many economical digital multimeters that you can purchase, hopefully these instructions will be of some use to you no matter what brand or type of meter you use. “

My Notes

Students and Hobbyists can study all the example projects and tutors in this site to become more skillful. They have pages that show how a PCB is made and things like Circuit Design and Prototyping. This Site also happens to be one of the oldest resources in the web for Electronic Embedded Designs.

PICkit 1 Flash Starter Kit of Microchip

This is a low-cost development kit with an easy interface for programming Microchip’s 8/14-pin FLASH family of uC. You can speedily program, evaluate and develop applications using this.

PICkit 1 Flash Starter Kit of Microchip

It is a basic kit for the ardent Microchip PIC fan, it helps him in programming his PIC chip over the USB too.

PICkit 1 Flash Starter Kit
Some features of the PICkit 1 FLASH Starter Kit are

  • Small circuit board with snap-off prototyping append board.
  • Easy Programming interface for FLASH family of uC.
  • Microchip’s MPLAB IDE software to create your code.
  • Seven sequential tutorials, Assembly and HI-TECH C.

The Micro Stop – RS232 and microcontroller schematics and C code, a lot is free!
RS232 DVM-001 Voltage Input Board in Kit Form or Fully Assembled and Tested

Source Code of Example – Source Code for PIC Book by Myke Predko

RS232 Voltmeter PIC Based

123 PIC MCU Experiments for the Evil Genius – by Myke Predko

More at the PICkit 1 FLASH Wiki Page

Learn Digital Logic Gates Operation

The Gate is a digital component that is used to compute an output for certain inputs, the inputs and outputs have two states high-1 and low- 0. Let us assume high is 5V and low is 0V (like in CMOS). On a high level the LED will light up and on a low level the LED is off. Now let us see what Logic means. digital-tutors – project page.

This page requires images and javascript to be enabled to try out the demo of the gates below.

Digital Logic Gates -xml code

Screenshot of Gadget

Digital Logic Gates

Gates are what make many of ICs, the two popular families are the 40xx CMOS and the 74xx TTL . Now 40xx come in 74HCT40xx flavors which approach the quality of an ideal gate. Entire circuits with Gates can also be also be burnt into PLDs, FPGAs and CPLDs just like you burn your CDROM. Gates can also be implemented in assembly language which a microcontroller like 8051 will understand and execute.

Hardware gate circuit will operate in real time, nano seconds delay will be there due to propagation delay, gate capacitance and FET switching times etc. Software or microcontroller gates code working will depend on both propagation delay and the CPU clock speed.

Gates can be combined to make combinational or sequential logic circuits. combinational circuits are a complex network of gates interconnected to evaluate a pattern of output for patterns of input. Sequential circuits use memory elements hence output patterns depend both on input patterns and the memory of history of events. An example of combinational logic circuit is a seven segment display decoder CD4511 and and example for a sequential logic circuit is CD4029 up-down counter.

The CD40xx CMOS family can work at even 3V-9V-12V DC and consume low power. The speed is not as fast as 74xx TTL family. It is good for simple portable battery powered circuits. The 74HCTxx series is good for low power and high speed but will work at 5V. When you have problems interfacing CMOS and TTL use 74HCTxx family.